Search engines

Edit 3 …
Google’s Query Processor

The query processor has several parts, including the user interface (search box), the “engine” that evaluates queries and matches them to relevant documents, and the results formatter.




query-diagram.png


Tricks for other search engines, when not to google.
http://lifehacker.com/#!5788772/when-not-to-google-searches-youre-better-off-making-elsewhere